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  Transport anomalies in CeCu2Si2

Franz, W., Steglich, F., & Wohlleben, D. (1979). Transport anomalies in CeCu2Si2. Journal de Physique. Colloques, 40(C5), 342-343. doi:10.1051/jphyscol:19795118.

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Franz, W.1, Author
Steglich, F.2, Author           
Wohlleben, D.1, Author
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1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: The transport properties (resistivity ρ, thermopower S, thermal conductivity k) of CeCu2Si2 with unstable 4f shell and of LaCu2Si2 as reference compound were measured between 1.5 K and 300 K. For CeCu2Si2, ρ becomes as large as 220 µΩcm (at 200 K) indicating an electronic mean free path of the order of the Ce-Ce spacing. Correspondingly, below 100 K we infer k ≈ kp (phonon conductivity). The low temperature results of S suggest heavy Fermi liquid behavior with characteristic temperature T* = (30 ± 10) K. Above 20 K, a distinct temperature dependence of both ρ and S originates in the crystal field splitting of the j = 5/2 state of Ce3+ with unstable 4f shell.

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 Dates: 1979-05-05
 Publication Status: Issued
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 Identifiers: ISI: A1979HK08900119
DOI: 10.1051/jphyscol:19795118
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Title: Journal de Physique. Colloques
  Other : J Phys Colloq
  Other : J. Physique
Source Genre: Journal
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Pages: - Volume / Issue: 40 (C5) Sequence Number: - Start / End Page: 342 - 343 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/0449-1947